Nick Greene is Editor-at-Large for MentalFloss.com. He has written about trying to ride the entire New York Subway system in one day, surviving the apocalypse without a spare set of contact lenses, and whether or not Elvis was actually any good at karate. Originally from Chicago, he currently lives in Brooklyn. View the discussion thread.
Ammonia (in Cigs). Ammonia is one of the many chemicals present in cigarettes. Ammonia is a chemical compound formed from the elements nitrogen and hydrogen. It has chemical formula: NH 3. At room temperature and pressure ammonia is a gas. It is toxic (poisonous), and corrosive to some materials, and has a strong and distinctive smell.
Ammonia is the only common alkaline gas. Its density is about half that of air and it has a characteristic smell. Its maximum safe level is 25ppm but its alkalinity makes it highly reactive with acid gases and chlorine and its presence in atmospheres containing other gases is often masked by this.